You will get Clean & standardized Excel/CSV data — fast + documented
Project details
I will clean and standardize your Excel/CSV/Google Sheets data so it’s ready for analysis, reporting, or CRM import. I handle real-world messy datasets: inconsistent naming, duplicates, mixed date/number formats, missing values, and “almost the same” entries.
What makes my work different is that I don’t just “clean and send back a file” — I also deliver a clear QC summary (before/after counts, duplicates removed, key checks) and a short change log describing the rules used. This means you can trust the output, understand what changed, and reuse the same approach in the future.
You’ll receive: cleaned dataset (Excel/CSV), a summary of fixes, and optional flags for anything ambiguous instead of guessing. Share your file + goal, and I’ll take it from messy to clean.
What makes my work different is that I don’t just “clean and send back a file” — I also deliver a clear QC summary (before/after counts, duplicates removed, key checks) and a short change log describing the rules used. This means you can trust the output, understand what changed, and reuse the same approach in the future.
You’ll receive: cleaned dataset (Excel/CSV), a summary of fixes, and optional flags for anything ambiguous instead of guessing. Share your file + goal, and I’ll take it from messy to clean.
Data Tool
PythonWhat's included
| Service Tiers |
Starter
$30
|
Standard
$60
|
Advanced
$120
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages Mined/Scraped | 0 | 0 | 0 |
Number of Sources Mined/Scraped | 0 | 0 | 0 |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$10 - $20
Cleaning + Scraping
(+ 1 Day)
+$20Frequently asked questions
About Stepan
Data Scientist/Engineer
Yerevan, Armenia - 11:17 am local time
What I can help you with
-Data cleaning, transformation, and validation (CSV/Excel/Google Sheets)
-Python automation scripts and CLI tools
-Statistical analysis (hypothesis testing, confidence intervals, regression)
-A/B testing analysis (effect size, p-values, CIs, multiple variants)
-Time-series / forecasting features and modeling (when needed)
-Dashboards and reporting (plots, tables, PDFs)
Tools
Python (pandas, numpy), SQL, Excel/Sheets, matplotlib, Git/GitHub
I care about clarity, reproducibility, and readable code. If you tell me your goal and share a sample of your data (even 20 rows), I’ll propose a clean plan and deliver quickly.
Steps for completing your project
After purchasing the project, send requirements so Stepan can start the project.
Delivery time starts when Stepan receives requirements from you.
Stepan works on your project following the steps below.
Revisions may occur after the delivery date.
Review dataset & confirm rules
I check columns, common issues (duplicates, formats, missing values) and confirm cleaning rules based on your goal.
Clean & standardize data
Fix formatting, normalize text, dates, numbers, and apply consistent naming/category rules.